{{Quote|[[Sofia (Assassin)|Sofia]]? You know her too...?"<br>"Er--I know the capital of [[Bulgaria]]-- That's where you busted up that human trafficking ring...|[[Natasha Romanoff]] and [[Gennady Markov]]|The Avengers Prelude: Black Widow Strikes}}

'''Sofia''' is the capital and largest city of [[Bulgaria]].

'''Sofia''' is the capital and largest city of [[Bulgaria]].

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Romanoff killed every single member and set the place ablaze, while, unbeknownst to her, the exploited girls were trapped inside and left to die in the fire.

Romanoff killed every single member and set the place ablaze, while, unbeknownst to her, the exploited girls were trapped inside and left to die in the fire.

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[[Sofia (Assassin)|Sofia]] survived this incident, and grew up to admire Romanoff, wanting to surpass her and claim the mantle of the [[Black Widow]].<ref>''[[The Avengers: Black Widow Strikes]]''</ref>

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[[Sofia (Assassin)|Sofia]] survived this incident, and grew up to admire Romanoff, wanting to surpass her and claim the mantle of the [[Black Widow]].<ref>''[[The Avengers Prelude: Black Widow Strikes]]''</ref>

History

Sofia was the location of the members of a particular human trafficking ring who snatched the woman who would become the mercenary known as Sofia at the age of fourteen, from her hometown of Saint Petersburg.